[Elecraft] RF in the Trees

[Don Wilhelm]

Half-wave dipoles are equal no matter how they are fed.  With an end-fed 
dipole, the short counterpoise advocated by W8JI is merely a method of 
accomplishing feed to that high impedance point.  There is no difference 
in the radiation of any half wave dipole (except as influenced by 
ground, surrounding objects, etc.) - if you can couple RF into it, it 
will radiate.

73,
Don W3FPR

On 6/27/2014 8:51 AM, K8JHR wrote:
> Hmmm.... vertical dipole... vs... end fed half wave vertical "dipole" 
>  - not sure these are equivalent in performance.  I know W8JI thinks 
> the end fed half wave needs some sort of ground system-counterpoise to 
> keep the feed line from becoming part of the antenna, so I am 
> wondering - asking not telling - whether these two are really 
> equivalent?  (He said reaching for his ARRL Antenna Book...)
>